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authorwdenk <wdenk>2003-07-24 23:38:38 +0000
committerwdenk <wdenk>2003-07-24 23:38:38 +0000
commit27b207fd0a0941b03f27e2a82c0468b1a090c745 (patch)
tree4d339d7a2a00889f09a876425ce430be57de56e9 /cpu
parent2535d60277cc295adf75cd5721dcecd840c69a63 (diff)
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* Implement new mechanism to export U-Boot's functions to standalone
applications: instead of using (PPC-specific) system calls we now use a jump table; please see doc/README.standalone for details * Patch by Dave Westwood, 24 Jul 2003: added support for Unity OS (a proprietary OS)
Diffstat (limited to 'cpu')
-rw-r--r--cpu/74xx_7xx/start.S70
-rw-r--r--cpu/i386/interrupts.c27
-rw-r--r--cpu/mips/start.S10
-rw-r--r--cpu/mpc5xx/start.S70
-rw-r--r--cpu/mpc5xxx/start.S70
-rw-r--r--cpu/mpc824x/drivers/i2c/i2c1.c11
-rw-r--r--cpu/mpc824x/start.S69
-rw-r--r--cpu/mpc8260/start.S70
-rw-r--r--cpu/mpc8xx/lcd.c8
-rw-r--r--cpu/mpc8xx/start.S70
-rw-r--r--cpu/ppc4xx/start.S70
11 files changed, 23 insertions, 522 deletions
diff --git a/cpu/74xx_7xx/start.S b/cpu/74xx_7xx/start.S
index 7d37c8e..7d7a493 100644
--- a/cpu/74xx_7xx/start.S
+++ b/cpu/74xx_7xx/start.S
@@ -159,75 +159,7 @@ ProgramCheck:
STD_EXCEPTION(0x900, Decrementer, timer_interrupt)
STD_EXCEPTION(0xa00, Trap_0a, UnknownException)
STD_EXCEPTION(0xb00, Trap_0b, UnknownException)
-
- . = 0xc00
-/*
- * r0 - SYSCALL number
- * r3-... arguments
- */
-SystemCall:
- addis r11,r0,0 /* get functions table addr */
- ori r11,r11,0 /* Note: this code is patched in trap_init */
- addis r12,r0,0 /* get number of functions */
- ori r12,r12,0
-
- cmplw 0, r0, r12
- bge 1f
-
- rlwinm r0,r0,2,0,31 /* fn_addr = fn_tbl[r0] */
- add r11,r11,r0
- lwz r11,0(r11)
-
- li r20,0xd00-4 /* Get stack pointer */
- lwz r12,0(r20)
- subi r12,r12,12 /* Adjust stack pointer */
- li r0,0xc00+_end_back-SystemCall
- cmplw 0, r0, r12 /* Check stack overflow */
- bgt 1f
- stw r12,0(r20)
-
- mflr r0
- stw r0,0(r12)
- mfspr r0,SRR0
- stw r0,4(r12)
- mfspr r0,SRR1
- stw r0,8(r12)
-
- li r12,0xc00+_back-SystemCall
- mtlr r12
- mtspr SRR0,r11
-
-1: SYNC
- rfi
-
-_back:
-
- mfmsr r11 /* Disable interrupts */
- li r12,0
- ori r12,r12,MSR_EE
- andc r11,r11,r12
- SYNC /* Some chip revs need this... */
- mtmsr r11
- SYNC
-
- li r12,0xd00-4 /* restore regs */
- lwz r12,0(r12)
-
- lwz r11,0(r12)
- mtlr r11
- lwz r11,4(r12)
- mtspr SRR0,r11
- lwz r11,8(r12)
- mtspr SRR1,r11
-
- addi r12,r12,12 /* Adjust stack pointer */
- li r20,0xd00-4
- stw r12,0(r20)
-
- SYNC
- rfi
-_end_back:
-
+ STD_EXCEPTION(0xc00, SystemCall, UnknownException)
STD_EXCEPTION(0xd00, SingleStep, UnknownException)
STD_EXCEPTION(0xe00, Trap_0e, UnknownException)
diff --git a/cpu/i386/interrupts.c b/cpu/i386/interrupts.c
index 84825ae..f340119 100644
--- a/cpu/i386/interrupts.c
+++ b/cpu/i386/interrupts.c
@@ -22,7 +22,6 @@
*/
#include <common.h>
-#include <syscall.h>
#include <malloc.h>
#include <asm/io.h>
#include <asm/i8259.h>
@@ -58,31 +57,6 @@ typedef struct {
static irq_desc_t irq_table[MAX_IRQ];
-
-asm(".globl syscall_entry\n" \
- "syscall_entry:\n" \
- "popl %ebx\n" /* throw away the return address, flags */ \
- "popl %ebx\n" /* and segment that the INT instruction pushed */ \
- "popl %ebx\n" /* on to the stack */ \
- "movl %eax, %ecx\n" /* load the syscall nr argument*/ \
- "movl syscall_tbl, %eax\n" /* load start of syscall table */ \
- "cmpl $(11-1), %ecx\n" /* FixMe: find a way to use NR_SYSCALLS macro here */ \
- "ja bad_syscall\n" \
- "movl (%eax, %ecx, 4), %eax\n" /* load the handler of the syscall*/ \
- "test %eax, %eax\n" /* test for null */ \
- "je bad_syscall\n" \
- "popl %ecx\n" \
- "popl %ebx\n" \
- "sti \n" \
- "jmp *%eax\n" \
-"bad_syscall: movl $0xffffffff, %eax\n" \
- "popl %ecx\n" \
- "popl %ebx\n" \
- "ret");
-
-void __attribute__ ((regparm(0))) syscall_entry(void);
-
-
asm ("irq_return:\n"
" addl $4, %esp\n"
" popa\n"
@@ -483,7 +457,6 @@ int interrupt_init(void)
set_vector(0x2e, irq_14);
set_vector(0x2f, irq_15);
/* vectors 0x30-0x3f are reserved for irq 16-31 */
- set_vector(0x40, syscall_entry);
/* Mask all interrupts */
diff --git a/cpu/mips/start.S b/cpu/mips/start.S
index 12129de..59c6acf 100644
--- a/cpu/mips/start.S
+++ b/cpu/mips/start.S
@@ -291,6 +291,11 @@ reset:
relocate_code:
move sp, a0 /* Set new stack pointer */
+ li t0, CFG_MONITOR_BASE
+ la t3, in_ram
+ lw t2, -12(t3) /* t2 <-- uboot_end_data */
+ move t1, a2
+
/*
* Fix GOT pointer:
*
@@ -301,11 +306,6 @@ relocate_code:
add gp, a2 /* gp now adjusted */
sub t6, gp, t6 /* t6 <-- relocation offset */
- li t0, CFG_MONITOR_BASE
- la t3, in_ram
- lw t2, -12(t3) /* t2 <-- uboot_end_data */
- move t1, a2
-
/*
* t0 = source address
* t1 = target address
diff --git a/cpu/mpc5xx/start.S b/cpu/mpc5xx/start.S
index 3b6d344..548ec99 100644
--- a/cpu/mpc5xx/start.S
+++ b/cpu/mpc5xx/start.S
@@ -226,75 +226,7 @@ ProgramCheck:
STD_EXCEPTION(0x900, Decrementer, timer_interrupt)
STD_EXCEPTION(0xa00, Trap_0a, UnknownException)
STD_EXCEPTION(0xb00, Trap_0b, UnknownException)
-
- . = 0xc00
-/*
- * r0 - SYSCALL number
- * r3-... arguments
- */
-SystemCall:
- addis r11,r0,0 /* get functions table addr */
- ori r11,r11,0 /* Note: this code is patched in trap_init */
- addis r12,r0,0 /* get number of functions */
- ori r12,r12,0
-
- cmplw 0, r0, r12
- bge 1f
-
- rlwinm r0,r0,2,0,31 /* fn_addr = fn_tbl[r0] */
- add r11,r11,r0
- lwz r11,0(r11)
-
- li r20,0xd00-4 /* Get stack pointer */
- lwz r12,0(r20)
- subi r12,r12,12 /* Adjust stack pointer */
- li r0,0xc00+_end_back-SystemCall
- cmplw 0, r0, r12 /* Check stack overflow */
- bgt 1f
- stw r12,0(r20)
-
- mflr r0
- stw r0,0(r12)
- mfspr r0,SRR0
- stw r0,4(r12)
- mfspr r0,SRR1
- stw r0,8(r12)
-
- li r12,0xc00+_back-SystemCall
- mtlr r12
- mtspr SRR0,r11
-
-1: SYNC
- rfi
-
-_back:
-
- mfmsr r11 /* Disable interrupts */
- li r12,0
- ori r12,r12,MSR_EE
- andc r11,r11,r12
- SYNC /* Some chip revs need this... */
- mtmsr r11
- SYNC
-
- li r12,0xd00-4 /* restore regs */
- lwz r12,0(r12)
-
- lwz r11,0(r12)
- mtlr r11
- lwz r11,4(r12)
- mtspr SRR0,r11
- lwz r11,8(r12)
- mtspr SRR1,r11
-
- addi r12,r12,12 /* Adjust stack pointer */
- li r20,0xd00-4
- stw r12,0(r20)
-
- SYNC
- rfi
-_end_back:
-
+ STD_EXCEPTION(0xc00, SystemCall, UnknownException)
STD_EXCEPTION(0xd00, SingleStep, UnknownException)
STD_EXCEPTION(0xe00, Trap_0e, UnknownException)
diff --git a/cpu/mpc5xxx/start.S b/cpu/mpc5xxx/start.S
index 4145442..37448ac 100644
--- a/cpu/mpc5xxx/start.S
+++ b/cpu/mpc5xxx/start.S
@@ -208,75 +208,7 @@ ProgramCheck:
STD_EXCEPTION(0xa00, Trap_0a, UnknownException)
STD_EXCEPTION(0xb00, Trap_0b, UnknownException)
-
- . = 0xc00
-/*
- * r0 - SYSCALL number
- * r3-... arguments
- */
-SystemCall:
- addis r11,r0,0 /* get functions table addr */
- ori r11,r11,0 /* Note: this code is patched in trap_init */
- addis r12,r0,0 /* get number of functions */
- ori r12,r12,0
-
- cmplw 0, r0, r12
- bge 1f
-
- rlwinm r0,r0,2,0,31 /* fn_addr = fn_tbl[r0] */
- add r11,r11,r0
- lwz r11,0(r11)
-
- li r20,0xd00-4 /* Get stack pointer */
- lwz r12,0(r20)
- subi r12,r12,12 /* Adjust stack pointer */
- li r0,0xc00+_end_back-SystemCall
- cmplw 0, r0, r12 /* Check stack overflow */
- bgt 1f
- stw r12,0(r20)
-
- mflr r0
- stw r0,0(r12)
- mfspr r0,SRR0
- stw r0,4(r12)
- mfspr r0,SRR1
- stw r0,8(r12)
-
- li r12,0xc00+_back-SystemCall
- mtlr r12
- mtspr SRR0,r11
-
-1: SYNC
- rfi
-
-_back:
-
- mfmsr r11 /* Disable interrupts */
- li r12,0
- ori r12,r12,MSR_EE
- andc r11,r11,r12
- SYNC /* Some chip revs need this... */
- mtmsr r11
- SYNC
-
- li r12,0xd00-4 /* restore regs */
- lwz r12,0(r12)
-
- lwz r11,0(r12)
- mtlr r11
- lwz r11,4(r12)
- mtspr SRR0,r11
- lwz r11,8(r12)
- mtspr SRR1,r11
-
- addi r12,r12,12 /* Adjust stack pointer */
- li r20,0xd00-4
- stw r12,0(r20)
-
- SYNC
- rfi
-_end_back:
-
+ STD_EXCEPTION(0xc00, SystemCall, UnknownException)
STD_EXCEPTION(0xd00, SingleStep, UnknownException)
STD_EXCEPTION(0xe00, Trap_0e, UnknownException)
diff --git a/cpu/mpc824x/drivers/i2c/i2c1.c b/cpu/mpc824x/drivers/i2c/i2c1.c
index dc1c97c..94c671e 100644
--- a/cpu/mpc824x/drivers/i2c/i2c1.c
+++ b/cpu/mpc824x/drivers/i2c/i2c1.c
@@ -1197,13 +1197,16 @@ int i2c_write (uchar chip, uint addr, int alen, uchar * buffer, int len)
uchar *p;
int i;
- p = dummy_buffer;
/* fill in address in big endian order */
- for (i=0; i<alen; ++i)
- *p++ = (addr >> (i * 8)) & 0xFF;
+ for (i=alen-1; i>=0; --i) {
+ buffer[i] = addr & 0xFF;
+ addr >>= 8;
+ }
/* fill in data */
+ p = dummy_buffer + alen;
+
for (i=0; i<len; ++i)
- *p++ = *buffer;
+ *p++ = *buffer++;
status = I2C_do_buffer (0, I2C_MASTER_XMIT, chip, alen + len,
dummy_buffer, I2C_STOP, 1, I2C_NO_RESTART);
diff --git a/cpu/mpc824x/start.S b/cpu/mpc824x/start.S
index b1cdb84..a22137c 100644
--- a/cpu/mpc824x/start.S
+++ b/cpu/mpc824x/start.S
@@ -259,74 +259,7 @@ ProgramCheck:
STD_EXCEPTION(EXC_OFF_DECR, Decrementer, timer_interrupt)
STD_EXCEPTION(0xa00, Trap_0a, UnknownException)
STD_EXCEPTION(0xb00, Trap_0b, UnknownException)
-
- . = 0xc00
-/*
- * r0 - SYSCALL number
- * r3-... arguments
- */
-SystemCall:
- addis r11,r0,0 /* get functions table addr */
- ori r11,r11,0 /* Note: this code is patched in trap_init */
- addis r12,r0,0 /* get number of functions */
- ori r12,r12,0
-
- cmplw 0, r0, r12
- bge 1f
-
- rlwinm r0,r0,2,0,31 /* fn_addr = fn_tbl[r0] */
- add r11,r11,r0
- lwz r11,0(r11)
-
- li r20,0xd00-4 /* Get stack pointer */
- lwz r12,0(r20)
- subi r12,r12,12 /* Adjust stack pointer */
- li r0,0xc00+_end_back-SystemCall
- cmplw 0, r0, r12 /* Check stack overflow */
- bgt 1f
- stw r12,0(r20)
-
- mflr r0
- stw r0,0(r12)
- mfspr r0,SRR0
- stw r0,4(r12)
- mfspr r0,SRR1
- stw r0,8(r12)
-
- li r12,0xc00+_back-SystemCall
- mtlr r12
- mtspr SRR0,r11
-
-1: SYNC
- rfi
-
-_back:
-
- mfmsr r11 /* Disable interrupts */
- li r12,0
- ori r12,r12,MSR_EE
- andc r11,r11,r12
- SYNC /* Some chip revs need this... */
- mtmsr r11
- SYNC
-
- li r12,0xd00-4 /* restore regs */
- lwz r12,0(r12)
-
- lwz r11,0(r12)
- mtlr r11
- lwz r11,4(r12)
- mtspr SRR0,r11
- lwz r11,8(r12)
- mtspr SRR1,r11
-
- addi r12,r12,12 /* Adjust stack pointer */
- li r20,0xd00-4
- stw r12,0(r20)
-
- SYNC
- rfi
-_end_back:
+ STD_EXCEPTION(0xc00, SystemCall, UnknownException)
STD_EXCEPTION(EXC_OFF_TRACE, SingleStep, UnknownException)
diff --git a/cpu/mpc8260/start.S b/cpu/mpc8260/start.S
index d3fd865..a499bc1 100644
--- a/cpu/mpc8260/start.S
+++ b/cpu/mpc8260/start.S
@@ -319,75 +319,7 @@ ProgramCheck:
STD_EXCEPTION(0xa00, Trap_0a, UnknownException)
STD_EXCEPTION(0xb00, Trap_0b, UnknownException)
-
- . = 0xc00
-/*
- * r0 - SYSCALL number
- * r3-... arguments
- */
-SystemCall:
- addis r11,r0,0 /* get functions table addr */
- ori r11,r11,0 /* Note: this code is patched in trap_init */
- addis r12,r0,0 /* get number of functions */
- ori r12,r12,0
-
- cmplw 0, r0, r12
- bge 1f
-
- rlwinm r0,r0,2,0,31 /* fn_addr = fn_tbl[r0] */
- add r11,r11,r0
- lwz r11,0(r11)
-
- li r20,0xd00-4 /* Get stack pointer */
- lwz r12,0(r20)
- subi r12,r12,12 /* Adjust stack pointer */
- li r0,0xc00+_end_back-SystemCall
- cmplw 0, r0, r12 /* Check stack overflow */
- bgt 1f
- stw r12,0(r20)
-
- mflr r0
- stw r0,0(r12)
- mfspr r0,SRR0
- stw r0,4(r12)
- mfspr r0,SRR1
- stw r0,8(r12)
-
- li r12,0xc00+_back-SystemCall
- mtlr r12
- mtspr SRR0,r11
-
-1: SYNC
- rfi
-
-_back:
-
- mfmsr r11 /* Disable interrupts */
- li r12,0
- ori r12,r12,MSR_EE
- andc r11,r11,r12
- SYNC /* Some chip revs need this... */
- mtmsr r11
- SYNC
-
- li r12,0xd00-4 /* restore regs */
- lwz r12,0(r12)
-
- lwz r11,0(r12)
- mtlr r11
- lwz r11,4(r12)
- mtspr SRR0,r11
- lwz r11,8(r12)
- mtspr SRR1,r11
-
- addi r12,r12,12 /* Adjust stack pointer */
- li r20,0xd00-4
- stw r12,0(r20)
-
- SYNC
- rfi
-_end_back:
-
+ STD_EXCEPTION(0xc00, SystemCall, UnknownException)
STD_EXCEPTION(0xd00, SingleStep, UnknownException)
STD_EXCEPTION(0xe00, Trap_0e, UnknownException)
diff --git a/cpu/mpc8xx/lcd.c b/cpu/mpc8xx/lcd.c
index c150928..f2e404c 100644
--- a/cpu/mpc8xx/lcd.c
+++ b/cpu/mpc8xx/lcd.c
@@ -61,9 +61,9 @@
/* ** BITMAP DISPLAY SUPPORT -- should probably be moved elsewhere */
/************************************************************************/
-#if (CONFIG_COMMANDS & CFG_CMD_BMP)
+#if (CONFIG_COMMANDS & CFG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
#include <bmp_layout.h>
-#endif /* (CONFIG_COMMANDS & CFG_CMD_BMP) */
+#endif /* (CONFIG_COMMANDS & CFG_CMD_BMP) || CONFIG_SPLASH_SCREEN */
/************************************************************************/
/* ** FONT AND LOGO DATA */
@@ -1176,7 +1176,7 @@ static void bitmap_plot (int x, int y)
}
#endif /* CONFIG_LCD_LOGO */
-#if (CONFIG_COMMANDS & CFG_CMD_BMP)
+#if (CONFIG_COMMANDS & CFG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
/*
* Display the BMP file located at address bmp_image.
* Only uncompressed
@@ -1273,7 +1273,7 @@ int lcd_display_bitmap(ulong bmp_image)
return (0);
}
-#endif /* (CONFIG_COMMANDS & CFG_CMD_BMP) */
+#endif /* (CONFIG_COMMANDS & CFG_CMD_BMP) || CONFIG_SPLASH_SCREEN */
/*----------------------------------------------------------------------*/
diff --git a/cpu/mpc8xx/start.S b/cpu/mpc8xx/start.S
index 81a4dc0..893c0f8 100644
--- a/cpu/mpc8xx/start.S
+++ b/cpu/mpc8xx/start.S
@@ -266,75 +266,7 @@ ProgramCheck:
STD_EXCEPTION(0x900, Decrementer, timer_interrupt)
STD_EXCEPTION(0xa00, Trap_0a, UnknownException)
STD_EXCEPTION(0xb00, Trap_0b, UnknownException)
-
- . = 0xc00
-/*
- * r0 - SYSCALL number
- * r3-... arguments
- */
-SystemCall:
- addis r11,r0,0 /* get functions table addr */
- ori r11,r11,0 /* Note: this code is patched in trap_init */
- addis r12,r0,0 /* get number of functions */
- ori r12,r12,0
-
- cmplw 0, r0, r12
- bge 1f
-
- rlwinm r0,r0,2,0,31 /* fn_addr = fn_tbl[r0] */
- add r11,r11,r0
- lwz r11,0(r11)
-
- li r20,0xd00-4 /* Get stack pointer */
- lwz r12,0(r20)
- subi r12,r12,12 /* Adjust stack pointer */
- li r0,0xc00+_end_back-SystemCall
- cmplw 0, r0, r12 /* Check stack overflow */
- bgt 1f
- stw r12,0(r20)
-
- mflr r0
- stw r0,0(r12)
- mfspr r0,SRR0
- stw r0,4(r12)
- mfspr r0,SRR1
- stw r0,8(r12)
-
- li r12,0xc00+_back-SystemCall
- mtlr r12
- mtspr SRR0,r11
-
-1: SYNC
- rfi
-
-_back:
-
- mfmsr r11 /* Disable interrupts */
- li r12,0
- ori r12,r12,MSR_EE
- andc r11,r11,r12
- SYNC /* Some chip revs need this... */
- mtmsr r11
- SYNC
-
- li r12,0xd00-4 /* restore regs */
- lwz r12,0(r12)
-
- lwz r11,0(r12)
- mtlr r11
- lwz r11,4(r12)
- mtspr SRR0,r11
- lwz r11,8(r12)
- mtspr SRR1,r11
-
- addi r12,r12,12 /* Adjust stack pointer */
- li r20,0xd00-4
- stw r12,0(r20)
-
- SYNC
- rfi
-_end_back:
-
+ STD_EXCEPTION(0xc00, SystemCall, UnknownException)
STD_EXCEPTION(0xd00, SingleStep, UnknownException)
STD_EXCEPTION(0xe00, Trap_0e, UnknownException)
diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S
index aa857d0..e3e92af 100644
--- a/cpu/ppc4xx/start.S
+++ b/cpu/ppc4xx/start.S
@@ -769,75 +769,7 @@ ProgramCheck:
STD_EXCEPTION(0x900, Decrementer, timer_interrupt)
STD_EXCEPTION(0xa00, Trap_0a, UnknownException)
STD_EXCEPTION(0xb00, Trap_0b, UnknownException)
-
- . = 0xc00
-/*
- * r0 - SYSCALL number
- * r3-... arguments
- */
-SystemCall:
- addis r11,r0,0 /* get functions table addr */
- ori r11,r11,0 /* Note: this code is patched in trap_init */
- addis r12,r0,0 /* get number of functions */
- ori r12,r12,0
-
- cmplw 0, r0, r12
- bge 1f
-
- rlwinm r0,r0,2,0,31 /* fn_addr = fn_tbl[r0] */
- add r11,r11,r0
- lwz r11,0(r11)
-
- li r20,0xd00-4 /* Get stack pointer */
- lwz r12,0(r20)
- subi r12,r12,12 /* Adjust stack pointer */
- li r0,0xc00+_end_back-SystemCall
- cmplw 0, r0, r12 /* Check stack overflow */
- bgt 1f
- stw r12,0(r20)
-
- mflr r0
- stw r0,0(r12)
- mfspr r0,SRR0
- stw r0,4(r12)
- mfspr r0,SRR1
- stw r0,8(r12)
-
- li r12,0xc00+_back-SystemCall
- mtlr r12
- mtspr SRR0,r11
-
-1: SYNC
- rfi
-
-_back:
-
- mfmsr r11 /* Disable interrupts */
- li r12,0
- ori r12,r12,MSR_EE
- andc r11,r11,r12
- SYNC /* Some chip revs need this... */
- mtmsr r11
- SYNC
-
- li r12,0xd00-4 /* restore regs */
- lwz r12,0(r12)
-
- lwz r11,0(r12)
- mtlr r11
- lwz r11,4(r12)
- mtspr SRR0,r11
- lwz r11,8(r12)
- mtspr SRR1,r11
-
- addi r12,r12,12 /* Adjust stack pointer */
- li r20,0xd00-4
- stw r12,0(r20)
-
- SYNC
- rfi
-_end_back:
-
+ STD_EXCEPTION(0xc00, SystemCall, UnknownException)
STD_EXCEPTION(0xd00, SingleStep, UnknownException)
STD_EXCEPTION(0xe00, Trap_0e, UnknownException)